(19)

(11)

EP 1 305 873 A2

(12)

(88) Date of publication A3: 20.02.2003 (43) Date of publication: 02.05.2003 Bulletin 2003/18 (21) Application number: 01945994.0 (22) Date of filing: 24.05.2001

(51) International Patent Classification (IPC)7: H02M 3/00 (86) International application number: PCT/US0117/027 (87) International publication number: WO 0109/5467 (13.12.2001 Gazette 2001/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 02.06.2000 US 585928 (71) Applicant: Iwatt Corporation Los Gatos, CA 95032 (US)	(72) Inventors: TELEFUS, Mark, D. Orinda, CA 94563 (US) COLLMEYER, Arthur, J. Incline Village, NV 89450 (US) WONG, Dickson, T. Burlingame, CA 94010 (US) MANNER, David, B. Traverse City, MI 49686 (US) (74) Representative: Viering, Jentschura & Partner  Postfach 22 14 43 80504 München 80504 München (DE)